The son of Ernest Cecil and Gertrude Le Mesurier, Flight Sub-Lieutenant Thomas Frederick Le Mesurier received Royal Aero Club Aviator's Certificate 2753 on a Maurice Farman biplane at Central Flying School, Upavon on 17 March 1916. Posted to 5 Naval Squadron, he scored seven victories flying the D.H.4 in 1917.
Great Britain, Royal Aero Club Aviators' Certificates, 1910-1950
Distinguished Service Cross (DSC)
Flt.-Lieut. Thomas Frederick Le Mesurier, R.N.A.S.
For conspicuous work as a pilot of a bombing machine. Has taken part in fourteen raids and numerous fighter patrols.
Supplement to the London Gazette, 12 May 1917 (30066/4626)
Distinguished Service Cross (DSC) First Bar
Flt. Cdr. Thomas Frederick Le Mesurier, D.S.C., R.N.A.S.
For consistent skill and courage in leading his flight on bombing raids, particularly on the 28th July, 1917.
Supplement to the London Gazette, 29 August 1917 (30258/8988)
Distinguished Service Cross (DSC) Second Bar
Lieut. (temp. Capt.) Thomas Frederick Le Mesurier, D.S.C., R.A.F.
For gallantry and consistent good work. He has at all times displayed the utmost gallantry in action, and by his determination and skill has set a very fine example to the pilots of his squadron. On the 23rd April, 1918, in spite of bad weather conditions, he successfully dropped bombs on the Ostend Docks from a height of 800 feet amidst very intense anti-aircraft and machine-gun fire. He also made valuable observations. He has taken part in many bomb raids, and has destroyed or driven down out of control several enemy machines.
Supplement to the London Gazette, 21 June 1918 (30756/7304)